mccain, who joins us shortly, almost from the beginning. >> as we determined the details of what took place there and how that attack took place, that it became clear that there were terrorists who had planned that attack. >> the best we can tell, this is the first time any administration official has uttered the word "planned" to describe what happened. asked how long it took to reach his conclusion, secretary panetta said quote, it took awhile once information from benghazi came back. but keeping them honest, multiple sources now tell "360" that officials knew this was a terror attack almost from the get-go within 24 hours. at least intelligence officials. yet this is what they were saying for more than a week publicly after the killing. >> it's important to know that there's an fbi investigation that has begun, and will take some time to be completed. that will tell us with certainty what transpired, but our current best assessment, based on the information that we have at present, is that in fact, what this began as was a spontaneous, not a premeditated, response to what had trans